IMPORTANT SAFETY INSTRUCTIONS

Use the wrench within the specified pipe diameter range and grip pipes at the center of the teeth from a right angle. Additionally, never extend wrenches with a pipe or similar objects. Furthermore, refrain from using wrenches as a substitute for a hammer. Moreover, avoid applying impact to wrenches by striking them with a hammer or other tools. If you find any abnormal condition such as broken teeth, wear, or clogging, discontinue using the wrench immediately.